Our People

  • Jamie Resor, Chief Executive Officer, Member of Board of Directors

    Mr. Resor is groSolar’s CEO and a Member of the Board of Directors.  Mr. Resor joined groSolar in 2008 and was CFO and COO before becoming CEO in 2012.  Mr. Resor has led groSolar’s growth as a leading solar developer and engineering, procurement, and construction (EPC) firm in the U.S. as the Company has developed and/or constructed many award winning projects over the past five years. Prior to joining groSolar, Mr. Resor had 20 years of experience across many corporate and board roles in large organizations, start-up companies, and non-profit organizations.  Mr. Resor's early career included a range of opportunities from working on the Thai/Cambodian border for the International Rescue Committee to banking and management consulting with Fortune 1000 clients.  Later, Mr. Resor developed and directed the pioneering Conservation Finance program for World Wildlife Fund, the world’s largest environmental organization.  In this capacity, he raised more than $150 million for environmental conservation projects through debt-for-nature swaps and other cross-border financing transactions in Africa, Asia and Latin America.  Mr. Resor also assisted in the establishment of the Bhutan Trust Fund for Environmental Conservation and served on its advisory board for ten years.  Throughout his career, Mr. Resor has brought creativity and leadership to managing successful businesses and environmental stewardship. Mr. Resor received his undergraduate degree from Dartmouth College and MBA from Stanford University Graduate School of Business.

  • Steve Remen, Executive Vice President of Business Development

    Mr. Remen joined groSolar in 2012 as their Executive Vice President of Business Development and brings deep energy sector experience as an engineer and project manager, completing large-scale generation projects with a broad range of utility, corporate, financial, and government partners.  In addition to serving as the Massachusetts Commissioner of Energy where he had responsibility for energy policy and programs within the state, Mr. Remen started and grew two successful sales and marketing teams which generated revenues in excess of $300 million annually.  He’s also highly experienced in project development, having developed several power generation facilities totaling more than $250 million in value.  Mr. Remen has an MBA from Boston University and a BS in Mechanical Engineering from Worcester Polytechnic Institute and held Registered Professional Engineer licenses in the states of New Hampshire, Connecticut, and Florida.

  • Frank Griffin, Executive Vice President of Engineering and Construction

    Mr. Griffin is groSolar’s Executive Vice President of Engineering and Construction with responsibility for EPC (Engineering, Procurement and Construction) and O&M (Operations and Maintenance) of commercial and utility-scale projects. He joined groSolar in 2008, and under his direction groSolar has successfully completed design and construction of solar PV projects on the East Coast, Midwest and in California. Mr. Griffin has over 30 years of project development and project management experience.   Prior to joining groSolar, he was Vice President and Regional Development Manager for Lane Company, a multi-family real estate developer where he developed projects valued in excess of $200 million. He was Senior Manager at Mesirow Financial Real Estate, Inc., dedicated to the University of Illinois at Chicago, South Campus Development, a $1.2 billion mixed-use redevelopment. Mr. Griffin’s landfill and brownfield remediation experience includes capping of more than 300 acres of landfills in four states and design-build of liquid and gas treatment systems. Mr. Griffin received his BS in Civil Engineering from Lehigh University and received an MBA from the Pennsylvania State University.

  • Rod Viens, Executive Vice President of Operations

    Mr. Viens is groSolar’s Executive Vice President of Operations and manages PV equipment procurement as well project development in the Vermont and other key regional markets.  Prior to the company’s sale of its residential division, Mr. Viens oversaw the direct residential and small commercial installation operations, which constructed multiple megawatts of solar in ten states. Mr. Viens's development and project management experience at groSolar has included multi-residential commercial buildings, schools, and utility projects ranging in size from 100 kW to 7 MW.   Prior to joining groSolar, he was Vice President of Operations and Business Development for Yankee Barn Homes, a nationally distributed post and beam home manufacturer, where he established and oversaw the installation construction division and was charged with improving overall company processes. Mr. Viens graduated from Keene State College with a BS in Management.

  • ML Geffert, Vice President, General Counsel

    ML Geffert serves as Vice President, General Counsel, and Assistant Secretary of groSolar.  ML has over 20 years of legal experience, with an emphasis on transactional representation, project financing, construction and real estate contracting, as well as the design and implementation of benefit and compensation plans. Prior to joining groSolar, ML served as Group Counsel for Mueller Water Products, as Senior Counsel for Apogent Technologies, as Deputy City Attorney for the City of Santa Fe, NM, and as General Counsel for the City University Construction Fund.  ML Geffert is a member of the New Hampshire and New York Bar Associations.  ML earned a B.A. with high honors from Rutgers College, Rutgers University, where she was elected to Phi Beta Kappa, and a J.D. from NYU School of Law, where she served as Articles Editor for the Review of Law and Social Change.  

  • Joseph Johnson, Director of Structured Finance

    Joseph Johnson, Director of Structured Finance, draws upon his 13 years of experience to lead groSolar’s valuation and project finance execution efforts. Prior to joining groSolar in 2015, Joe worked as an investment professional at GE Energy Financial Services and Washington Gas focusing on renewable energy and oil & gas partnership investments and had previously been an investment banker at Merrill Lynch in New York.  He also served for five years as an officer in the United States Marine Corps. Joe received a Bachelor’s of Science degree in Economics from the United States Naval Academy in Annapolis, MD, and an MBA from the University of Michigan’s Ross School of Business.

  • Maribeth Sawchuk, Director of Marketing and Communications

    Maribeth Sawchuk serves as groSolar’s Director of Marketing and Communications. Maribeth holds over 10 years of experience driving marketing and communications campaigns in the smart grid, oil, gas, power, and renewable energy industries.  Maribeth directs all public relations, and marketing at groSolar with a special emphasis on stakeholder engagement. Maribeth received a B.A. in History from the University of Central Florida.

  • Robb Jetty, Director of Business Development - Commercial & Industrial

    Robb Jetty, Director of Business Development, joined groSolar in 2016 and currently leads grosolar’s Commercial & Industrial business development efforts. Mr. Jetty has gained extensive solar industry experience from executive positions across the entire value chain while working for Recurrent Energy, M+W Energy (Gehrlicher Solar), Yingli, and Onyx Renewable Partners, a Blackstone Company. Since 2003 he has led the development, finance, construction, and operation of over $600M (~300MWs) roof-top, carport, and both fixed or tracking ground-mount solar projects in 16 different US States, for both the commercial and wholesale power sectors. Mr. Jetty has completed projects with partners such as Exelon, Dominion, Waste Management, ProLogis, Home Depot, Berry Plastics, Macquarie Energy, NextEra, and Morgan Stanley. He holds a BA in Land Use Planning from Binghamton University.

  • Tim Heinle, Director of Business Development - Wholesale Markets

    Timothy Heinle, Director of Business Development, joined groSolar in 2013 and currently leads groSolar’s utility solar business development efforts.  Mr. Heinle has over 20 years of experience in the energy industry, specializing in the development and financing of large independent power projects.  He has held management roles with Duke Energy, Pace Global, Magellan Resources, Community Energy and Siemens.  His broad-based experience covers natural gas, coal, wind, solar, landfill gas, alternative fuels and technology commercialization.  Mr. Heinle has played a key role in the development of over 2500 MW of new power generation that is currently operational across the eastern United States. Timothy Heinle earned his BA in Government from Georgetown University and his MBA from the College of William & Mary.